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Thread: 305 tpi with 7427 pcm Possible?

  1. #61
    Fuel Injected! JeepsAndGuns's Avatar
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    I have the moates G1 and a few V8 memcals, so I will give it a try this weekend and see what it does.
    79 Jeep Cherokee, AMC 401, T-18 manual trans, hydroboost, 16197427 MPFI system---the toy

    93 Jeep YJ Wrangler, 4.0L, 5 speed, 8.8 rear, homebrew hub conversion and big brakes, hydroboost, 2.5in OME lift, 31x10.50's---the daily driver

    99 Jeep WJ Grand Cherokee limited, 4.0L, auto, 2wd, leather and power everything, 99% stock---the long distance highway ride.

  2. #62
    Fuel Injected! Aholt91ss's Avatar
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    Quote Originally Posted by JeepsAndGuns View Post
    I have the moates G1 and a few V8 memcals, so I will give it a try this weekend and see what it does.
    i went along with the tbi to mpfi zip file to set up the chip i first tried it with no jumper it ran rough then tried it with and ran better

  3. #63
    Fuel Injected! Aholt91ss's Avatar
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    ok i just got back from alabama and i ordered the lc-1 wbo2 before i left now im and trying to figured this badboy out

  4. #64
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    Quote Originally Posted by dave w View Post
    I've done a couple MPFI conversions, both with modifying V8 Memcals. Works well for me that way!

    dave w
    I agree, I moded the V8 Memcals I used as well. The only exclusion being the OD MAF PFI setup.

  5. #65
    Fuel Injected! Aholt91ss's Avatar
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    I changed out injectors with ford yellow top injectors so now I gotta somehow figure out injector offset they're 19lb/hr @ fords pressure I can't remember pressure off top of my head

  6. #66
    Fuel Injected! Aholt91ss's Avatar
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    this is from a post that RBOB posted on tgo about ford

    is the short pulse width compensation versus pulse width the same as async short bpw offset vs bpw?
    http://www.thirdgen.org/techboard/di...al-timing.html
    Last edited by Aholt91ss; 08-02-2013 at 05:02 PM.

  7. #67
    Fuel Injected! Aholt91ss's Avatar
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    got them in it seems to be getting to much fuel at startup with ford yellow top injectors
    it idles at a lower rpm now like 1000 after i lowered spark advance tables
    Attached Files Attached Files
    Last edited by Aholt91ss; 08-10-2013 at 06:56 AM.

  8. #68
    Fuel Injected! JeepsAndGuns's Avatar
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    Quote Originally Posted by EagleMark View Post
    Not sure why you needed the jumper on Memcal? Is it a V8 Memcal? If so the jumper is not needed and may be something in bin wrong. We found this awhile ago and I verified it on a good running $0D MPFI system, it ran great without jumper and ran horrible with jumper?

    Quote Originally Posted by EagleMark View Post
    I thought you were in on that conversation? If you have a V8 memcal then the TBI to MPFI can be done on software side. 1project2many had explained it but I can't find the link.

    Ok, to update this, I finally had time to try this out today. My system runs great with a jumpered memcal. I installed a non jumpered memcal and it would not even start, It caughed and spit a couple times, but never fired off. Put the jumpered memcal back in and it started and ran fine. So it definately does something. I think it smelled a little fuel after trying to start it, so maybe it was flooding it? I'm not sure. Just wanted to post up my findings.
    79 Jeep Cherokee, AMC 401, T-18 manual trans, hydroboost, 16197427 MPFI system---the toy

    93 Jeep YJ Wrangler, 4.0L, 5 speed, 8.8 rear, homebrew hub conversion and big brakes, hydroboost, 2.5in OME lift, 31x10.50's---the daily driver

    99 Jeep WJ Grand Cherokee limited, 4.0L, auto, 2wd, leather and power everything, 99% stock---the long distance highway ride.

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